Hey I have a Stock D16Y8. I turbo'd my vehicle in about october and never had a problem with it smoking at all, lately I have been noticing more and more blue smoke if im lightly feathering the gas then stepping on it. I check my return line and there is no kinks. Im running a 4an line tho to the turbo and i heared i should either run a restrictor or a 3an line. Its a t25 turbo by the way... Just tonight i changed my oil to 10/40 and disconnected my pcv system so it can vent, Hopefully this fixes the problem. If anyone else has any ideas why this is happening it would be great!
Thank you

 

blow by maybe?

 

I am hoping its blow by... i just disconnected the pcv tonight so im hoping it cures everything, when i took the pcv out i noticed a bit of oil in it.

 

turbo seal proll going bad...better restrict it with something before it gets to the point of no return...

 

I had this problem with my crx with d16a6 turbo. My car would smoke at idle and when I was stepping lightly on gas. It was because I didnt have any restriction on my oil feed line. I ended up getting a new turbo and it fixed the problem.

 

haha, you hope its blowby? that would be worst, put a restrictor in there and hope it's your turbo seals. T25's are cheaper than Y8's and definitely easier to rebuild.